"David E. Wheeler" <david(at)kineticode(dot)com> writes:
> On Sep 1, 2010, at 10:30 AM, Tom Lane wrote:
>> Most aggregate functions ignore null inputs, so that rows in which
>> one or more of the expression(s) yield null are discarded. (This
>> can be assumed to be true, unless otherwise specified, for all
>> built-in aggregates.)
> I don't think you need the parentheses, though without them, "This" might be better written as "The ignoring of NULLs".
Done, without the parentheses. I didn't add "The ignoring of NULLs",
it seemed a bit too verbose.
regards, tom lane